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<head>
    <meta charset="utf-8">
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    <title>新打开的窗口</title>
    <meta name="description" content="">
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<h4>来自主页面的消息</h4>
<p></p>
<script src="../js/postMessager.iife.js"></script>
<script>
  let child = new PostMessager({
    id: 'child1',
  });
  child.on('some-event', function(content, event) {
    // console.log(content, event)
    document.querySelector('p').innerText = content.text
  })
</script>
</body>
</html>